Question

Question 18

Fill in the blanks to make the statement true.

In the formula, area of circle $=\pi r^2,$ the numerical constant of the expression $\pi r^2$ is ___

Answer 1

In $\pi r^2,$ the numerical constant is $\pi$ as $r^2$ is variable.

$Valueof\pi =\frac{22}{7}=3.14$